better than "manwich" sloppy joes

Ingredients

• 2 pounds hamburger
• 1 - chopped onion
• 1 - green pepper- chopped
• 2 cups ketchup
• 8 tablespoons water
• 4 tablespoons brown sugar
• 4 teaspoons worcestershire sauce
• 4 teaspoons yellow mustard
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• 1 teaspoon salt
• 1 teaspoon chili powder
• 1 - splash of vinegar- aprox 1/2 tsp
• 1 - pkg hamburger buns